Core Insights - The article highlights the top and bottom AH share premium rates, indicating significant discrepancies in market valuations between H-shares and A-shares for various companies [1][2][3]. Group 1: Top AH Share Premium Rates - Northeast Electric (00042) leads with a premium rate of 815.25%, followed by Hongye Futures (03678) at 277.62% and Sinopec Oilfield Service (01033) at 276.83% [1][2]. - The premium rates for the top three companies indicate a strong market preference for their H-shares compared to A-shares [2]. Group 2: Bottom AH Share Premium Rates - Contemporary Amperex Technology (03750) has the lowest premium rate at -7.20%, with China Merchants Bank (03968) at -0.80% and Heng Rui Medicine (01276) at 4.11% [1][3]. - The negative premium for Contemporary Amperex Technology suggests a potential undervaluation of its H-shares relative to A-shares [3]. Group 3: Premium Deviation Values - Zhongwei New Materials (02579) has the highest deviation value at 77.12%, indicating a significant difference from its historical average premium rate [1][4]. - The lowest deviation values are seen in Northeast Electric (00042) at -22.71%, suggesting a consistent underperformance compared to its historical premium [1][5].